Predicting the low-velocity impact behavior of polycarbonate: Influence of thermal history during injection molding

被引：20

作者：

Xu, Yingjie ^{[1
]}

Lu, Huan ^{[1
]}

Gao, Tenglong ^{[1
]}

Zhang, Weihong ^{[1
]}

机构：

[1] Northwestern Polytech Univ, ESAC, Xian 710072, Shaanxi, Peoples R China

来源：

INTERNATIONAL JOURNAL OF IMPACT ENGINEERING | 2015年 / 86卷

基金：

中国国家自然科学基金;

关键词：

Polycarbonate; Yield stress; Injection molding; Izod impact; Finite element simulation; MECHANICAL PERFORMANCE; BALLISTIC IMPACT; YIELD-STRESS; FRACTURE; DAMAGE; POLYMERS; PLATES; LONG;

D O I：

10.1016/j.ijimpeng.2015.08.013

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The influence of the thermal history experienced during injection molding on the low-velocity impact behavior of polycarbonate (PC) is investigated. An integrated methodology consisting of prediction of the processing-induced yield stress and finite element simulation of the impact behavior is proposed. The yield stress is first evaluated directly from the temperature history experienced during injection molding process. A strain rate-dependent elastic-plastic model with the modification to combine the influence of processing thermal history is developed to model the mechanical behavior of PC. Finite element simulation for notched Izod impact test is then conducted to analyze the impact behaviors of PC specimens with different thermal histories. Numerical results of the fracture energies are compared with experimental measurement to verify the proposed methodology. In addition, a series of numerical simulations are performed to examine the influence of thermal history experienced during injection molding on the plastic deformation and fracture energy of PC specimens. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：265 / 273

页数：9

共 31 条

[1]

[Anonymous], COMPUT MAT SCI

[2] ON THE LOW-VELOCITY IMPACT BEHAVIOR OF GLASS PLATES [J].

BALL, A ;

MCKENZIE, HW .

JOURNAL DE PHYSIQUE IV, 1994, 4 (C8) :783-788

[3] ANNEALING OF POLYCARBONATE BELOW THE GLASS-TRANSITION - QUANTITATIVE INTERPRETATION OF THE EFFECT ON YIELD STRESS AND DIFFERENTIAL SCANNING CALORIMETRY MEASUREMENTS [J].

BAUWENSCROWET, C ;

BAUWENS, JC .

POLYMER, 1982, 23 (11) :1599-1604

[4] FRACTURE MECHANICS OF POLYMERS AT HIGH RATES [J].

CASIRAGHI, T .

POLYMER ENGINEERING AND SCIENCE, 1978, 18 (10) :833-839

[5] DEFORMATION OF RUBBER-TOUGHENED POLYCARBONATE - MACROSCALE ANALYSIS OF THE DAMAGE ZONE [J].

CHENG, CM ;

HILTNER, A ;

BAER, E ;

SOSKEY, PR ;

MYLONAKIS, SG .

JOURNAL OF APPLIED POLYMER SCIENCE, 1994, 52 (02) :177-193

[6] Effect of confinement on thick polycarbonate plates impacted by long and AP projectiles [J].

Dorogoy, A. ;

Rittel, D. .

INTERNATIONAL JOURNAL OF IMPACT ENGINEERING, 2015, 76 :38-48

[7] Experimentation and modeling of inclined ballistic impact in thick polycarbonate plates [J].

Dorogoy, A. ;

Rittel, D. ;

Brill, A. .

INTERNATIONAL JOURNAL OF IMPACT ENGINEERING, 2011, 38 (10) :804-814

[8] Impact behavior and modeling of engineering polymers [J].

Duan, Y ;

Saigal, A ;

Greif, R .

POLYMER ENGINEERING AND SCIENCE, 2003, 43 (01) :112-124

[9]

Engels TAP, 2008, AIP CONF PROC, V1027, P1336, DOI 10.1063/1.2964565

[10] The Influence of Molecular Orientation on the Yield and Post-Yield Response of Injection-Molded Polycarbonate [J].

Engels, Tom A. P. ;

Govaert, Leon E. ;

Meijer, Han E. H. .

MACROMOLECULAR MATERIALS AND ENGINEERING, 2009, 294 (12) :821-828

← 1 2 3 4 →